Hello,
I just updated woocommerce (v. 3.3.1) and noticed that the hover effect images have disappeared. When I check it with developer tools, it shows this:<img class="show image" src="" class="show-image" alt="">
So the src is empty, it shows no image.
How can I fix this?
Thank you.

We’ve made some changes in royal/woocommerce/content-product.php and royal/woocommerce/content-product-slider.php files. The swap image will be got automatically from product gallery. Please add this css code in custom css:

We have fixed the problem on your site. If you do not set swap image, the second product gallery image will be shown, but if you select an image in product settings it will work also.
Is this ok for you?

Thank you. Can you please fix it for content-product-slider.php too?
And will this be fixed in the next update? The perfect solution would be if it was like it was before: Show the swap image if there is one, and if there is none, just do nothing and keep the main product image.
Thank you.

Ok, unfortunately its still not working perfectly. The swap images have other dimensions than the main images, although they are both 1000x1000px. The main product image is shown square, and the swap image as cropped to a rectangle…
Many thanks for your support.

We have checked this situation and this a bit strange, because on my test site all works fine. Please regenerate images using appropriate plugin, if this won’t help, try to change permissions on wp-content/uploads folder to 777 or ask about this your hosting provider support.